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Influence of mucuna fallow crop on selected soil properties, weed suppression and taro yields in Taveuni, Fiji

Lal, R. and Guinto, D.F. and Smith, M. (2016) Influence of mucuna fallow crop on selected soil properties, weed suppression and taro yields in Taveuni, Fiji. Acta Horticulturae (1118). pp. 89-94. ISSN 0567-7572

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Article Link(s): http://dx.doi.org/10.17660/ActaHortic.2016.1118.13

Abstract

Two field experiments were carried out in Taveuni, Fiji to study the effects of mucuna (Mucuna pruriens) and grass fallow systems at 6 and 12 month durations on changes in soil properties (Experiment 1) and taro yields (Experiment 2). Biomass accumulation of mucuna fallow crop was significantly higher (P<0.05) than grass fallow crop at both 6 and 12 month durations. The longer fallow duration resulted in higher (P<0.05) total soil organic carbon, total soil nitrogen and earthworm numbers regardless of fallow type. Weed suppression in taro grown under mucuna was significantly greater (P<0.05) than under natural grass fallow. Taro grown under mucuna fallow significantly outyielded taro grown under grass fallow (11.8 vs. 8.8 t ha-1). Also, the gross margin of taro grown under mucuna fallow was 52% higher than that of taro grown under grass fallow. © ISHS.

Item Type:Article
Business groups:Horticulture and Forestry Science
Keywords:Fallow crop Mucuna (Mucuna pruriens) Soil health Taro (Colocasia esculenta) Weeds Yields
Subjects:Science > Invasive Species > Plants > Integrated weed control
Agriculture > Agriculture (General) > Soils. Soil science > Soil and crops. Soil-plant relationships. Soil productivity
Agriculture > Agriculture (General) > Methods and systems of culture. Cropping systems
Plant culture > Horticulture. Horticultural crops
Plant culture > Vegetables
Deposited On:08 Aug 2016 02:58
Last Modified:08 Aug 2016 02:58

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